0.9999.... = 1.0

[PullusPardus]

1 = 100%
0.9 = 99%
0.99 = 99%
0.999 = 99%
0.998 = 99%
0.997 = 99%
0.99999999999999997 = 99%
0.98999 = 98%
1.99 = 199%

instead of confusing yourself, you use percentage relative to the subject that you are counting, how many of it as a whole instead of how many of it there is.